Patent SG-11201408781Y-A (SG)
Title: Process for acrylate production
Inventor: ALLEN SCOTT D
IPC: C07C1/04
Filed: 2013-07-02
Abstract: (12) INTERNATIONAL APPLICATION PUBLISHED UNDER THE PATENT COOPERATION TREATY (PCT) (19) World Intellectual Property Organization International Bureau (43) International Publication Date 9 January 2014 (09.01.2014) WIPOIPCT (10) International Publication Number WO 2014/008232 A2 (51) International Patent Classification: C07C 67/27 (2006.01) (21) International Application Number: (22) International Filing Date: (25) Filing Language: (26) Publication Language: PCT/US2013/049026 2 July 2013 (02.07.2013) English English (30) Priority Data: 61/667,101 2 July 2012 (02.07.2012) (71) Applicant: NOVOMER, INC. [US/US]; 950 Danby Road, Suite 198, Ithaca, New York 14850 (US). (72) Inventors: ALLEN, Scott D.; c/o Novomer, Inc., 950 Danby Road, Suite 198, Ithaca, New York 14850 (US). COATES, Geoffrey; c/o Novomer, Inc., 950 Danby Road, Suite 198, Ithaca, New York 14850 (US). (81) Designated States (unless otherwise indicated, for every kind of national protection available)'. AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BN, BR, BW, BY, BZ, CA, CH, CL, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PA, PE, PG, PH, PL, PT, QA, RO, RS, RU, RW, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TH, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW. Ug (84) Designated States (unless otherwise indicated, for every kind of regional protection available)'. ARIPO (BW, GH, GM, KE, LR, LS, MW, MZ, NA, RW, SD, SL, SZ, TZ, UG, ZM, ZW), Eurasian (AM, AZ, BY, KG, KZ, RU, TJ, TM), European (AL, AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MK, MT, NL, NO, PL, PT, RO, RS, SE, SI, SK, SM, TR), OAPI (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, KM, ML, MR, NE, SN, TD, TG). (74) Agents: KLEIN, Daniel A. et al.; CHOATE, HALL & STEWART LLP, Two International Place, Boston, Mas­ sachusetts 02110 (US). Published: — without international search report and to be republished upon receipt of that report (Rule 48.2(g)) CJ CJ m CJ oo o o o CJ O & (54) Title: PROCESS FOR ACRYLATE PRODUCTION (57) Abstract: Disclosed are methods for the continuous flow production of acrylic acid and derivatives thereof from an epoxide feedstock. In one embodiment, the method includes the steps of: contacting process a stream comprising ethylene oxide and an or - ganic solvent with carbonylation a catalyst and carbon monoxide to provide reaction a stream containing beta propiolactone; apply­ ing the reaction stream containing the beta propiolactone to a nanofiltration membrane produce permeate stream containing to a beta lactone and retentate a stream containing carbonylation catalyst; and treating the permeate stream under conditions to convert the beta propiolactone into an acrylate ester. In some embodiments, the retentate stream returned is to the first step of the process where it is recharged with additional epoxide and passed through the sequence again.